1833 Meteor Shower: The Night the Stars Fell.

In 1833, North America witnessed a massive meteor shower, with 150,000 meteors per hour lighting up the sky. At the time, it was interpreted as something supernatural, but it was later discovered to be the Leonids meteor shower, which occurs every 33 years. The meteors originate from the Tempel-Tuttle comet and are as small as 10mm. The last major Leonid storm was in 2002, and this year's sighting is expected between November 17 and 18. Denison Olmsted's public appeal for witness testimonies is credited as the first use of crowdsourcing for scientific research.